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Blowout fractures of the orbital floor.

Six patients with blowout fractures of the orbital floor, not associated with infraorbital rim fractures, are presented. Diplopia, infraorbital anesthesia and enophthalmos following blunt trauma to the eye should alert the examiner to the possibility of a blowout fracture with incarceration of extraocular tissues. Early roentgenographic examinations are often difficult to evaluate because of periorbital edema, mucosal swelling and antral hematoma. In cases in which stereoscopic Waters projections are equivocal, laminograms of the orbit, after the edema subsides, will aid in confirming the diag…